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Finding the Fourth Proportional to 73,764.90, 110,501.55 and 40,425.30

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Solution

The fourth proportional to 73,764.90, 110,501.55 and 40,425.30 is: 60,558.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,764.90 : 110,501.55 = 40,425.30 : x
  2. Step 2: Convert to fraction form
    73,764.90/110,501.55 = 40,425.30/x
  3. Step 3: Cross multiply
    73,764.90x = 110,501.55 × 40,425.30
  4. Step 4: Simplify right side
    73,764.90x = 4,467,058,309.22
  5. Step 5: Solve for x
    x = 4,467,058,309.22/73,764.90
  6. Step 6: Final answer
    x = 60,558.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.